Studio Warehouse, Sims 4

Hello, I am very new to making meshes. So far I have created 5 pieces of clothing and only 1 piece of furniture, a double bed. I had these ideas for a long time but never seen anyone create them so I decided to make them myself but the problem I'm having is to install them into the game. I am completely finished with all 6 pieces and to start with I wanted to try installing the bed first because it's the biggest piece I thought it would be the hardest but I don't know how to import my bed into the warehouse and then it go into the game. Can someone please help with this??


I've been looking online for videos but have not seen a video for creating and installing furniture. There are lots of videos to watch but I have yet to find one that could help me with this issue.


Thank you, Melika